<template>
  <div :class="className" :style="{height:height,width:width}" />
</template>

<script>
import { apiDs } from "@/api/openapi";
import * as echarts from 'echarts';
require('echarts/theme/macarons') // echarts theme
import resize from './mixins/resize'

const animationDuration = 6000

export default {
  mixins: [resize],
  props: {
    className: {
      type: String,
      default: 'chart'
    },
    width: {
      type: String,
      default: '100%'
    },
    height: {
      type: String,
      default: '300px'
    }
  },
  data() {
    return {
      chart: null,
      dsData: null,
      xdata:[],
      ydata:[]
    }
  },
  mounted() {
    apiDs("asset_stock").then(response=>{
      this.dsData = response.data;
      let xdata = [];
      let ydata = [];
      response.data.forEach(row => {
        xdata.push(row.name);
        ydata.push(row.value);
      });
      this.xdata = xdata;
      this.ydata = ydata;

      this.$nextTick(() => {
        this.initChart()
      })
    })
  },
  beforeDestroy() {
    if (!this.chart) {
      return
    }
    this.chart.dispose()
    this.chart = null
  },
  methods: {
    initChart() {
      this.chart = echarts.init(this.$el, 'macarons')

      this.chart.setOption({
        tooltip: {
          trigger: 'axis',
          axisPointer: { // 坐标轴指示器，坐标轴触发有效
            type: 'shadow' // 默认为直线，可选为：'line' | 'shadow'
          }
        },
        grid: {
          top: 10,
          left: '2%',
          right: '2%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [{
          type: 'category',
          data: this.xdata,
          axisTick: {
            alignWithLabel: true
          }
        }],
        yAxis: [{
          type: 'value',
          axisTick: {
            show: false
          }
        }],
        series: [{
          type: 'bar',
          stack: 'vistors',
          barWidth: '60%',
          data: this.ydata,
          animationDuration
        }]
      })
    }
  }
}
</script>
